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<H2><A NAME=SECTION00033000000000000000> Changes in Version 1.10</A></H2>
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<UL><LI>
  Fixed some bugs.
<LI>
  Implemented the <A HREF="node22.html#BPXPCGIter">BPX Preconditioned Conjugate Gradient method</A>.
  Renamed the module <b> MGSOLV</b> and the program <tt> mgtest</tt>
  in <A HREF="node22.html#MLSOLV"><b> MLSOLV</b></A> and 
  <A HREF="node12.html#SubsectionMLSTEST"><tt> mlstest</tt></A>, respectively,
  because of their true multilevel character.
<LI>
  Improved the estimation of extremal eigenvalues by the Lanczos method.
<LI>
  Accelerated the iterative solvers for a zero initial solution
  (which often arises within the multigrid algorithm).
<LI>
  Changed the defaults for accuracy in the modules <A HREF="node26.html#RTC"><b> RTC</b></A> and
  <A HREF="node17.html#EIGENVAL"><b> EIGENVAL</b></A>
  to 1e-8
 and 1e-4,
 respectively. 
<LI>
  Extended the structure of type <tt> QMatrix</tt>,
  e.g. reciprocal values of diagonal elements which are needed in classical
  solvers (Jacobi, SOR method) are stored as auxiliary variables.
<LI>
  Implemented the procedure <A HREF="node27.html#V_SetRndCmp"><tt> V_SetRndCmp</tt></A> 
  in the module <A HREF="node27.html#VECTOR"><b> VECTOR</b></A> which initializes vector 
  components by random values. 
<LI>
  Modified the stopping criterion for <A HREF="node20.html#GMRESIter">GMRES</A>.
<LI>
  Changed the names of some procedures and variables.
</UL><BR> <HR>
<P><ADDRESS>
Tomas Skalicky (skalicky@msmfs1.mw.tu-dresden.de)
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